Neutral:
Sound is good, but not with as much depth as headphones from other manufacturers.
The lower pressure of the earphones is a compromise with respect. Of perceptible bass and comfort.
Anyone looking for a durable companion for active workouts, the wearing comfort is more important than high-fidelity, which can access courageously.
Alternatives (less durable, less resistant in terms of welding) are quality neckband headphones from Sennheiser and Sony.